Sources: Harrison twins pass on NBA draft, returning to Kentucky

Kentucky head coach John Calipari, center, talks with guard Andrew Harrison, left, and guard Aaron Harrison during the first half of the NCAA Final Four tournament college basketball semifinal game against Wisconsin Saturday, April 5, 2014, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Aaron and Andrew Harrison have decided against entering the 2014 NBA draft and will return to Kentucky for their sophomore seasons, sources told Yahoo Sports.

With a monstrous frontline returning at Kentucky, the Harrisons were considered the keys to the Wildcats starting the season as favorites to win the national title.

The Harrison twins had wrestled with the decision over the past several weeks and had flip-flopped several times in recent days. The most recent feedback from the NBA had them on the bubble as first-round picks, league sources told Yahoo Sports.

The Harrison twins plan to formalize the decision at a news conference Friday afternoon in Lexington, Ky.

DraftExpress.com has Andrew Harrison ranked as the 39th-best prospect in this 2014 draft class, and Aaron ranked 53rd.